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Perpetua Resources Can Help Secure U.S. Production of Critical Mineral Antimony

Corporate Updates

405 S 8th Street #201, Boise, ID 83702 1

NEWS RELEASE

February 25, 2021

Perpetua Resources Can Help Secure U.S. Production of Critical Mineral Antimony

BOISE, ID – Perpetua Resources Corp. (formerly Midas Gold Corp.) (Nasdaq: PPTA / TSX:

PPTA) welcomes President Joe Biden’s recently issued Executive Order on securing America’s critical

supply chains. Perpetua Resources is in the process of permitting America’s only mined source of

antimony, a federally designated critical mineral for its use in the national defense, technology, and

energy sectors. The Executive Order declares strengthening the resilience of the American supply

chain as a policy of the Administration and requires that over the next one hundred days supply chain

risks and policy recommendations be brought forward regarding semiconductor manufacturing, high-

capacity batteries, critical minerals, and pharmaceuticals.

“Securing our country’s critical supply chains is a bi-partisan effort we can all support,” said Perpetua

Resources President and CEO Laurel Sayer. “President Biden’s Executive Order places critical minerals

in the national spotlight, and antimony is a key mineral in three out of the four areas the President has

directed federal officials to focus on over the next 100 days. We are encouraged by the recognition that

responsible, domestic sourcing of minerals like antimony is essential to building resilient supply chains

and a stronger, more sustainable, American future.”

Antimony strengthens alloys and makes them resistant to corrosion. Its properties make it a highly

valuable mineral for many applications across a wide range of sectors. It is used in munitions for national

defense, flame retardants, wind and hydro turbines, solar panels, large storage batteries, spaceships,

cell phones, semiconductors, plastics and cable sheathing. Currently, there are no U.S. mined sources

of antimony, China and Russia dominate the antimony supply with more than 80 percent of the world’s

production. Perpetua Resource’s Stibnite Gold Project in Idaho could supply approximately thirty

percent of the American demand for antimony in the first six years of production.

Jessica Largent

Vice President Investor Relations and Finance

[email protected]

[email protected]

Mckinsey Lyon

Vice President External Affairs

[email protected]

Website: www.perpetuaresources.com

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About Perpetua Resources and the Stibnite Gold Project

Perpetua Resources Corp., through its wholly owned subsidiaries, is focused on the exploration,

site restoration and redevelopment of gold-antimony-silver deposits in the Stibnite-Yellow Pine

district of central Idaho that are encompassed by the Stibnite Gold Project. The Project is one

of the highest -grade, open pit gold deposits in the United States and is desi gned to apply a

modern, responsible mining approach to restore an abandoned mine site and produce both

gold and the only mined source of antimony in the United States. Antimony is a federally

designated critical mineral for its use in the national defense, aerospace and technology sectors.

In addition to the company’s commitments to transparency, accountability, environmental

stewardship, safety and community engagement, Perpetua Resources adopted formal ESG

commitments which can be found here.